N Concordance 1 l/L) was lowered in patients with large bowel cancer and increased significantly 2 e estimated relative risk (RR) of large bowel cancer decreased with increasing l 3 n serum levels of 1,25-DIOH D and large bowel cancer risk. However, the estimate 4 Background: The epidemiology of large-bowel cancer suggests a role for endocr 5 of serum CEA can predict recurrence of bowel cancer soon enough to allow furthe 6 hich could explain the low incidence of bowel cancer and rectal cancer in tropic 7 s originally thought to be specific for bowel cancer, but further studies have s 8 to those implicated in large bowel cancer, cigarette smoking, alcohol 9 o had surgery for non-obstructing large bowel cancer. Qualitative and quantitati